Spectrophotometer - Study guides, Class notes & Summaries

1 milliliter is equal to how many microliters? a. 0.1 b. 1 c. 10 d. 100 e. 1000 - ️️e 1000 pg (picograms) is equal to how many ng (nanograms)? a. 0.1 b. 1 c. 10 d. 100 e. 1000 - ️️b A 260nm/280nm spectrophotometer absorption ratio of 1.8 - 2.0 indicates which of the following? a. The size of the protein. b. The size of the DNA. c. Good protein purity. d. Good nucleic acid purity. e. How many subunits the protein contains. - ️️d A mixture of ddNTPs and dNTPs...

PAX Science NLN Exam Questions and Answers Latest 2022 Graded A A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains A.) carbon dioxide. B.) hydrogen. C.) oxygen. D.) nitrogen. answer: carbon dioxide. A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient? A.) 125/95 mm Hg B.) 120/80 mm Hg C...

MLS Final Exam Questions & Answers 2024/2025 Calculate MCV - ANSWERShematocrit*10 / RBC Calculate MCH - ANSWERShemoglobin*10 / RBC Calculate MCHC - ANSWERShemoglobin*100 / Hematocrit the rule three - ANSWERShgb is 3x hct (plus or minus 3 st dev) calculate cell count in microliter - ANSWERScells*10*dilution factor/ cells counted dilution factor - ANSWERSTotal Volume/Sample Volume estimating platelets - ANSWERSin the feather edge, count the average number of platelets in an ...

Ciulla: Clinical Chemistry Questions and Answers Already Passed 1. Which of the following lamps provides a continuous spectrum of radiant energy in the visible, near IR, and near UV regions of the spectrum? A. Tungsten-filament B. Hydrogen C. Deuterium D. Mercury Vapor A. Tungsten-filament 2. Which of the following isolates light within a narrow region of the spectrum? A. Photomultiplier tube B. Monochromator C. Photovoltaic cell D. Detector B. Monochromator 3. Which of the following is...

Exp: Molecular Modeling - newman projection: staggered - newman projection: eclipsed - Newman Projection Conformations and their relative energies [draw a graph] - The gauche conformation of butane occurs when the dihedral angle between at the C1-C2 and C3-C4 is 60 degrees. There is sterric strain in the molecule due the proximity of the two methyl groups. Would the sterric strain in this molecule increase OR decrease C1-C2-C3 [and C2-C3-24] bond angle was increased to more than 109.5...

Lindsey Jones Practice Exam Qs w/ Explanations Latest Update Already Passed 1. A patient has undergone overnight oximetry. Data shows several episodes of O2 desaturation throughout the night. The RTT would expect orders for which of the following kinds of testing: a. V/Q scan b. pulmonary function testing c. polysomnography d. 24-hour Holter monitoring Your answer: C Correct answer: C The use of overnight oximetery is often used to detect O2 desaturation during the night that m...

This lab report deals with the determination of Phosphate in Cola using an Absorption Spectrophotometer. It is an extremely fun, yet challenging lab completed by second year chemical engineering students. This is a guide on how one should respond to each section of the lab report to achieve great marks!

Closely packed purple nucleated cells" - ️️thymus A class is studying bgalactosidase activity in a bacterial culture. After a student adds ONPG to their sample, the student adds two drops of chloroform, mixes the samples, and allows the samples to sit before transferring the supernatant to a cuvette for a enzymatic assay reading using a spectrophotometry. To the student's surprise, their enzymatic assay reading was significantly lower than the rest of the class's. What is the best explan...

MMSC407 Exam Questions with Correct Answers What is the distance between the crests of two successive waves - Answer-Wavelength What is the height of each wave - Answer-Amplitude What is the number of waves which pass an observation point in one second - AnswerFrequency What is it called when the wave bounces back to the source - Answer-Reflected What is it called when the wave is absorbed by the material - Answer-Absorbed What is it called when the wave passes through the material - An...

KSU BIOLOGY 198 EXAM 1 2024 WITH 100% CORRECT ANSWERS A device used to see tiny organisms, used for research and counting. - correct answer Microscope A device that passes light through a substance in order to assess the absorption and transmittance. - correct answer Spectrophotometer Measurement of the amount of light captured by the dissolved or suspended material. - correct answer Absorbance The fraction of incident light at a specified wavelength that passes through a sample. -...